Sealing detection equipment for gasket

Abstract

The utility model discloses sealing detection equipment for gaskets, which belongs to the technical field of gasket sealing detection and comprises a main frame, a PLC (programmable logic controller), a driving mechanism, a clamping and positioning mechanism and a detection side mechanism. The automatic feeding and discharging device is novel in design and ingenious in device, the rotating speed of the motor is adjusted through the PLC so as to drive the sample frame fixed to the linear guide rail to move to achieve automatic feeding and discharging, the clamping and positioning mechanism is composed of a pair of adjustable V-shaped groove clamps, the distance between two grooves is adjusted by rotating a hand wheel, and therefore gaskets of different sizes and specifications can be stably clamped and do not fall off; the core of the detection side mechanism is a closed circulation system formed by combining a high-pressure pump and a micro-pressure sensor, when a to-be-detected gasket is correctly placed in a designated position, the system firstly fills air of a preset pressure grade into the gasket to form a closed environment, and then the sealing efficiency of the gasket is evaluated by monitoring the change condition of internal and external pressure within a period of time. And the practicability of the device is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gasket sealing detection, and particularly relates to a gasket sealing detection device. BACKGROUND

[0002] With the continuous improvement of the fine requirements of industrial production, ensuring the quality of the gasket, which is a basic component, becomes one of the key factors to improve the overall product quality. The gasket is mainly used to prevent fluid leakage and ensure the good operation of mechanical equipment, and is widely used in the fields of petroleum, chemical industry, electric power and the like. In order to ensure the good sealing performance of the gasket, the traditional method relies on manual visual inspection or simple air tightness test for quality inspection. Although these methods are intuitive and effective, they have obvious deficiencies in precision and efficiency.

[0003] At present, the gasket sealing performance detection means used in the market mainly include but are not limited to manual pressure tester and semi-automatic detection device with low automation degree. The manual pressure tester judges whether the gasket is qualified by observing whether there is leakage by applying a certain pressure. However, this method is not only time-consuming and laborious, but also difficult to avoid human error. On the other hand, some manufacturers begin to introduce semi-automatic detection equipment. This kind of equipment is usually equipped with sensors to automatically complete part of the detection process, but still needs manual assistance to complete the whole test procedure. Therefore, it cannot fully meet the actual needs of high-efficiency mass production.

[0004] Therefore, the existing manual and semi-automatic detection methods generally have the problems of slow detection speed, low reliability and inability to adapt to mass production lines. Especially for high-standard industrial applications, this inefficient traditional mode has become an important bottleneck to limit the production capacity improvement.

[0005] Therefore, the present application provides a gasket sealing detection device. Content of the utility model

[0006] This application proposes a gasket sealing testing device to solve the problems mentioned in the background art. The device consists of a main frame, a drive mechanism, a clamping and positioning mechanism, and a testing side mechanism. The main frame serves as a supporting structure to carry various functional modules. The drive mechanism is responsible for the sample feeding movement, the clamping and positioning mechanism is used to accurately fix the position of the gasket to be tested for subsequent operations, and the core testing side mechanism integrates a precision pressure control system and a highly sensitive leak detector. The drive mechanism includes a design combining a linear guide rail and a servo motor. The motor speed is adjusted by a PLC controller to drive the sample holder fixed on the linear guide rail to move, achieving automated feeding and unloading. The clamping and positioning mechanism consists of a pair of adjustable V-groove clamps. The distance between the two grooves can be adjusted by rotating a handwheel to ensure that gaskets of different sizes and specifications can be stably clamped without falling off. The core of the testing side mechanism is a closed-loop system composed of a high-pressure pump and a micro-pressure sensor. When the gasket to be tested is correctly placed in the designated position, the system first fills its interior with air at a predetermined pressure level to form a closed environment. Then, by monitoring the changes in internal and external pressure over a period of time, its sealing performance is evaluated, greatly improving the practicality of the device.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] A gasket sealing testing device includes a main frame, a PLC controller, a drive mechanism, a clamping and positioning mechanism, and a testing side mechanism. The PLC controller is fixedly connected to the top of the main frame. The drive mechanism includes a slide rail, a lead screw, a slider, a servo motor, and a sample holder. The slide rail is fixedly connected inside the main frame. The lead screw is rotatably connected inside the slide rail, and the slider is slidably connected inside the slide rail. The slider and the lead screw are threaded together. The servo motor is fixedly connected to the outside of the slide rail, and the output end of the servo motor is fixedly connected to one end of the lead screw. The servo motor is electrically connected to the PLC controller.

[0009] In a preferred embodiment, a sample holder is fixedly connected to the top of the slider. The sample holder is semi-circular in shape and has a groove inside.

[0010] The practicality of the device is improved by setting up a sample holder for placing washers and transferring the washers between two V-groove fixtures on the clamping and positioning mechanism.

[0011] In a preferred embodiment, the main frame is provided with a clamping and positioning mechanism, which includes a V-groove clamp, an anti-slip pad, a threaded rod, and a handwheel.

[0012] By setting up a clamping and positioning mechanism, the position of the gasket to be inspected is precisely fixed to facilitate subsequent operations, thereby improving the practicality of the device.

[0013] In a preferred embodiment, both threaded rods are rotatably connected inside the main frame, and a handwheel is fixedly connected to one end of each threaded rod located outside the main frame;

[0014] By setting up a threaded rod and a handwheel, the V-groove clamp can be moved by turning the threaded rod with the handwheel, thereby improving the practicality of the device.

[0015] In a preferred embodiment, one end of each of the two threaded rods located inside the main frame is movably connected to a V-groove clamp, and both V-groove clamps are located above the sample holder, with anti-slip pads provided on both V-groove clamps;

[0016] By setting anti-slip pads on the V-groove clamp, it can be further ensured that the washers in the clamp are not easy to fall off, thereby improving the practicality of the device.

[0017] In a preferred embodiment, the main frame is fixedly connected with multiple telescopic rods, and the telescopic end of each telescopic rod is fixedly connected to a V-groove clamp.

[0018] By setting a telescopic rod, the V-groove clamp can be limited when it moves, preventing the V-groove clamp from rotating synchronously when the threaded rod rotates, thereby improving the practicality of the device.

[0019] In a preferred embodiment, a detection side mechanism is provided inside the main frame. The detection side mechanism includes a high-pressure pump and a micro-pressure sensor. The high-pressure pump is fixedly connected inside the main frame and located above the V-groove fixture. The micro-pressure sensor is fixedly connected inside the main frame, and the output end of the high-pressure pump is connected to the micro-pressure sensor. The high-pressure pump and the micro-pressure sensor are electrically connected to the PLC controller.

[0020] The core of the detection mechanism is a closed-loop system consisting of a high-pressure pump and a micro-pressure sensor. When the gasket to be tested is correctly placed in the designated position, the system first fills its interior with air at a predetermined pressure level to form a closed environment. Then, by monitoring the changes in internal and external pressure over a period of time, its sealing performance is evaluated, thereby improving the practicality of the device.

[0021] In a preferred embodiment, an observation window is installed inside the main frame, and the observation window is installed on the side close to the V-groove fixture;

[0022] By setting an observation window on the main frame, the distance between the two V-groove clamps can be observed when the clamping and positioning mechanism is adjusted, which facilitates real-time observation and position adjustment, thereby improving the practicality of the device.

[0023] The beneficial effects of this application are:

[0024] 1. A gasket sealing testing device, comprising a main frame, a drive mechanism, a clamping and positioning mechanism, and a testing side mechanism. The main frame serves as a supporting structure to carry various functional modules. The drive mechanism is responsible for the sample feeding motion, the clamping and positioning mechanism is used to accurately fix the position of the gasket to be tested for subsequent operations, and the core testing side mechanism integrates a precision pressure control system and a highly sensitive leak detector. The drive mechanism includes a design combining linear guide rails and servo motors. The motor speed is adjusted by a PLC controller to drive the sample holder fixed on the linear guide rail to move, achieving automated feeding and unloading. The clamping and positioning mechanism consists of a pair of adjustable V-groove clamps. The distance between the two grooves is adjusted by rotating a handwheel to ensure that gaskets of different sizes and specifications can be stably clamped without falling off. The core of the testing side mechanism is a closed-loop circulation system composed of a high-pressure pump and a micro-pressure sensor. When the gasket to be tested is correctly placed in the designated position, the system first fills its interior with air at a predetermined pressure level to form a closed environment. Then, by monitoring the changes in internal and external pressure over a period of time, its sealing performance is evaluated, greatly improving the practicality of the device.

[0025] 2. This gasket sealing testing equipment significantly improves the automation level of gasket sealing performance testing, achieving fully unmanned operation and greatly reducing human resource consumption. Its highly integrated system architecture design shortens the single measurement cycle by approximately 80%, saving companies significant time and resources and accelerating market response. Utilizing advanced sensing technology and rigorous data verification logic, it effectively overcomes the uncertainties caused by subjective judgment in traditional methods, ensuring the authenticity and reliability of each test result, thus contributing to a positive brand image and greatly enhancing the practicality of the device. Attached Figure Description

[0026] Fig. 1 This is a schematic diagram of the main body of the device in this application;

[0027] Fig. 2 This is a schematic diagram of the internal structure of the device described in this application;

[0028] Fig. 3 This is a schematic diagram of the clamping and positioning mechanism of the device in this application.

[0029] The following are the labeling elements in the diagram: 1. Main frame; 11. Observation window; 2. PLC controller; 3. Drive mechanism; 31. Slide rail; 32. Lead screw; 33. Slider; 34. Servo motor; 35. Sample holder; 4. Clamping and positioning mechanism; 411. V-groove fixture; 412. Anti-slip pad; 421. Threaded rod; 422. Handwheel; 5. Detection side mechanism; 51. High-pressure pump; 52. Micro-pressure sensor; 6. Telescopic rod. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0031] Reference Figs. 1-3 A gasket sealing testing device includes a main frame 1, a PLC controller 2, a drive mechanism 3, a clamping and positioning mechanism 4, and a testing side mechanism 5. The PLC controller 2 is fixedly connected to the top of the main frame 1. The drive mechanism 3 includes a slide rail 31, a lead screw 32, a slider 33, a servo motor 34, and a sample holder 35. The slide rail 31 is fixedly connected inside the main frame 1. The lead screw 32 is rotatably connected inside the slide rail 31. The slider 33 is slidably connected inside the slide rail 31, and the slider 33 is threadedly connected to the lead screw 32. The servo motor 34 is fixedly connected to the outside of the slide rail 31, and the output end of the servo motor 34 is fixedly connected to one end of the lead screw 32. The servo motor 34 is electrically connected to the PLC controller 2.

[0032] A sample holder 35 is fixedly connected to the top of the slider 33. The sample holder 35 is semi-circular in shape and has a groove inside. By setting the sample holder 35, a gasket is placed and the gasket is transferred to the two V-groove clamps 411 on the clamping and positioning mechanism 4, thereby improving the practicality of the device.

[0033] The main frame 1 is equipped with a clamping and positioning mechanism 4, which includes a V-groove clamp 411, an anti-slip pad 412, a threaded rod 421, and a handwheel 422. By setting up the clamping and positioning mechanism 4, the position of the gasket to be inspected is accurately fixed to facilitate subsequent operations, thereby improving the practicality of the device.

[0034] Both threaded rods 421 are rotatably connected inside the main frame 1, and a handwheel 422 is fixedly connected to one end of each threaded rod 421 located outside the main frame 1. By setting the threaded rods 421 and the handwheels 422, the handwheels 422 can rotate the threaded rods 421, which can cause the V-groove clamp 411 to move in position, thereby improving the practicality of the device.

[0035] Both threaded rods 421 are movably connected to V-groove clamps 411 at one end inside the main frame 1, and both V-groove clamps 411 are located above the sample holder 35. Both V-groove clamps 411 are provided with anti-slip pads 412. By providing anti-slip pads 412 on the V-groove clamps 411, it can be further ensured that the washers in the clamp are not easy to fall off, thereby improving the practicality of the device.

[0036] The main frame 1 is fixedly connected with multiple telescopic rods 6, and the telescopic end of each telescopic rod 6 is fixedly connected to the V-groove clamp 411. By setting the telescopic rods 6, the V-groove clamp 411 can be limited when it moves, preventing the V-groove clamp 411 from rotating synchronously when the threaded rod 421 rotates, thereby improving the practicality of the device.

[0037] The main frame 1 is equipped with a detection side mechanism 5, which includes a high-pressure pump 51 and a micro-pressure sensor 52. The high-pressure pump 51 is fixedly connected inside the main frame 1 and located above the V-groove clamp 411. The micro-pressure sensor 52 is fixedly connected inside the main frame 1, and the output end of the high-pressure pump 51 is connected to the micro-pressure sensor 52. The high-pressure pump 51 and the micro-pressure sensor 52 are electrically connected to the PLC controller 2. The core of the detection side mechanism 5 is a closed-loop system composed of the high-pressure pump 51 and the micro-pressure sensor 52. When the gasket to be tested is correctly placed in the designated position, the system will first fill its interior with air of a predetermined pressure level to form a closed environment. Then, by monitoring the changes in internal and external pressure over a period of time, its sealing performance is evaluated, thereby improving the practicality of the device.

[0038] An observation window 11 is installed inside the main frame 1, and the observation window 11 is installed on the side close to the V-groove clamp 411. By setting the observation window 11 on the main frame 1, the distance between the two V-groove clamps 411 can be observed when the clamping and positioning mechanism 4 is adjusted, which facilitates real-time observation and position adjustment, thereby improving the practicality of the device.

[0039] Working principle: Before starting the equipment, confirm that all components are in a safe state and set the target pressure value and related parameters through the touch screen. After pressing the start button, the servo motor 34 will drive the sample holder 35 forward according to the preset program until the V-groove clamp 411 just contacts the edge of the washer and stops. At this time, slowly rotate the handwheel 422 until the two V-shaped surfaces gently fit against the circumference to achieve a firm positioning without causing damage or deformation. Next, the formal testing stage begins. The PLC controller 2 sends a command to start the high-pressure pump 51 to quickly supply air to the sealed cavity and maintain a constant pressure level for several seconds. At the same time, the micro-pressure sensor 52 continuously monitors the internal and external pressure difference. If it exceeds the allowable deviation, it is judged as unqualified; otherwise, it is considered as passing the test.

[0040] Regarding the operating procedures and precautions, turn on the power switch, check that the electrical circuit is correct, log in to the operating system interface, set the experimental conditions such as inflation time, holding time, etc., and save the current configuration for future reuse. Adjust the appropriate spacing according to the sample diameter to prepare for sample reception. Place the gasket to be tested in the center of the V-groove and ensure that it is centered for centering purposes. Close the protective cover to trigger the travel limit switch to allow the equipment to start working automatically. After the test is completed, record the results displayed on the screen and retrieve the completed project.

[0041] The device consists of a main frame 1, a drive mechanism 3, a clamping and positioning mechanism 4, and a detection side mechanism 5. The main frame 1 serves as a supporting structure to carry various functional modules. The drive mechanism 3 is responsible for the sample feeding motion. The clamping and positioning mechanism 4 is used to accurately fix the position of the gasket to be tested for subsequent operations. The core detection side mechanism 5 integrates a precision pressure control system and a highly sensitive leak detector. The drive mechanism 3 includes a design combining a linear guide rail and a servo motor 34. The motor speed is adjusted by the PLC controller 2 to drive the sample holder 35 fixed on the linear guide rail to move, achieving automated feeding and unloading. The clamping and positioning mechanism 4 consists of a pair of adjustable V-groove clamps 411. The distance between the two grooves is adjusted by rotating the handwheel 422 to ensure that gaskets of different sizes and specifications can be stably clamped without falling off. The core of the detection side mechanism 5 is a closed-loop system composed of a high-pressure pump 51 and a micro-pressure sensor 52. When the gasket to be tested is correctly placed in the designated position, the system first fills its interior with air at a predetermined pressure level to form a closed environment. Then, it evaluates its sealing performance by monitoring the changes in internal and external pressure over a period of time.

[0042] The linear guide can be selected from the THK SR45 series, which has high rigidity and wear resistance and is suitable for long-term and frequent reciprocating motion. The servo motor 34 can be selected from the Yaskawa SIGMA-V series, which is characterized by fast response speed, accurate positioning and easy implementation of complex trajectory control. The V-shaped clamp is made of high-strength aluminum alloy with surface anodizing treatment, which is both lightweight and has good corrosion resistance. The high-pressure pump 51 adopts the German KNF brand miniature oil-free diaphragm compressor, which has a wide flow range and good stability, and is particularly suitable for use with laboratory or field testing instruments. The micro-pressure sensor 52 is from the Honeywell MSR series in the United States, which has a wide range coverage and an accuracy of ±0.1%FS, and can accurately capture subtle pressure fluctuation signals.

[0043] This gasket sealing testing equipment was designed with the modern manufacturing industry's requirements for efficient and reliable testing tools in mind. It adopts a modular design concept, making assembly and maintenance very convenient. Troubleshooting, repair, or hardware upgrades can be completed in just a few simple steps. The entire system is built on the principle of user-friendly human-machine interaction, with clear indicator lights and an audible alarm mechanism. Even workers without professional training can quickly master the essentials and carry out their daily work smoothly without incurring additional losses due to misoperation. More importantly, thanks to the core technical team's years of industry experience, we carefully selected a series of internationally renowned brand components based on preliminary research and demonstration, and assembled and debugged them to ensure that the final product reaches international advanced standards in terms of both durability and testing accuracy.

[0044] It significantly improves the automation level of gasket sealing performance testing, realizes unmanned operation throughout the process, greatly reduces human resource consumption, and reduces the single measurement cycle by about 80% thanks to the highly integrated system architecture design, saving enterprises a lot of valuable time and resources and helping to accelerate market response speed. With the help of advanced sensing technology and rigorous data verification logic, it effectively overcomes the various uncertainties caused by subjective judgment in traditional methods, ensuring that the test results are true and reliable and helping to establish a good brand image for enterprises.

[0045] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and the inventive concept of this application, should be included within the scope of protection of this application.

Claims

1. A gasket sealing testing device, comprising a main frame (1), a PLC controller (2), a drive mechanism (3), a clamping and positioning mechanism (4), and a testing side mechanism (5), characterized in that, The PLC controller (2) is fixedly connected to the top of the main frame (1). The drive mechanism (3) includes a slide rail (31), a lead screw (32), a slider (33), a servo motor (34), and a sample holder (35). The slide rail (31) is fixedly connected inside the main frame (1). The lead screw (32) is rotatably connected inside the slide rail (31). The slider (33) is slidably connected inside the slide rail (31). The slider (33) is threadedly connected to the lead screw (32). The servo motor (34) is fixedly connected to the outside of the slide rail (31). The output end of the servo motor (34) is fixedly connected to one end of the lead screw (32). The servo motor (34) is electrically connected to the PLC controller (2).

2. The gasket sealing testing device according to claim 1, characterized in that, The top of the slider (33) is fixedly connected to a sample holder (35), which is semi-circular in shape and has a groove inside.

3. The gasket sealing testing device according to claim 1, characterized in that, The main frame (1) is provided with a clamping and positioning mechanism (4), which includes a V-groove clamp (411), an anti-slip pad (412), a threaded rod (421), and a handwheel (422).

4. The gasket sealing testing device according to claim 3, characterized in that, Both threaded rods (421) are rotatably connected inside the main frame (1), and a handwheel (422) is fixedly connected to one end of each threaded rod (421) located outside the main frame (1).

5. A gasket sealing testing device according to claim 3, characterized in that, The two threaded rods (421) are movably connected to a V-groove clamp (411) at one end inside the main frame (1), and the two V-groove clamps (411) are located above the sample holder (35), and anti-slip pads (412) are provided on the two V-groove clamps (411).

6. The gasket sealing testing device according to claim 3, characterized in that, The main frame (1) is fixedly connected with multiple telescopic rods (6), and the telescopic end of each telescopic rod (6) is fixedly connected to a V-groove clamp (411).

7. The gasket sealing testing device according to claim 1, characterized in that, The main frame (1) is provided with a detection side mechanism (5), which includes a high-pressure pump (51) and a micro-pressure sensor (52). The high-pressure pump (51) is fixedly connected inside the main frame (1) and located above the V-groove fixture (411). The micro-pressure sensor (52) is fixedly connected inside the main frame (1), and the output end of the high-pressure pump (51) is connected to the micro-pressure sensor (52). The high-pressure pump (51) and the micro-pressure sensor (52) are electrically connected to the PLC controller (2).

8. A gasket sealing testing device according to claim 3, characterized in that, An observation window (11) is installed inside the main frame (1), and the observation window (11) is installed on the side near the V-groove fixture (411).

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